Describe how organisms acquire energy directly or indirectly from sunlight.

1 answer:

5 0

Photosynthetic organisms use sunlight to provide the energy necessary to combine carbon dioxide and water to form organic molecules and ATP. Those same photosynthetic organism also use cellular respiration to breakdown those organic molecules whenever there is an energy demand greater than what can be provided by photosynthesis or in the absence of light.

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What happens in your body to cause you to get a fever?

andriy [413]

The presence of a fever is usually related to stimulation of the body's immune response. Fever can support the immune system's attempt to gain advantage over infectious agents, such as viruses and bacteria, and it makes the body less favorable as a host for replicating viruses and bacteria, which are temperature sensitive. Infectious agents are not the only causes of fever, however. Amphetamine abuse and alcohol withdrawal can both elicit high temperatures, for example. And environmental fevers--such as those associated with heat stroke and related illnesses--can also occur.

The hypothalamus, which sits at the base of the brain, acts as the body's thermostat. It is triggered by floating biochemical substances called pyrogens, which flow from sites where the immune system has identified potential trouble to the hypothalamus via the bloodstream. Some pyrogens are produced by body tissue; many pathogens also produce pyrogens. When the hypothalamus detects them, it tells the body to generate and retain more heat, thus producing a fever. Children typically get higher and quicker fevers, reflecting the effects of the pyrogens upon an inexperienced immune system.

4 0

3 years ago

Question 1

Nadusha1986 [10]

Answer:

adenine is the correct answer for first

4 0

2 years ago

The growth of a population of sparrows accelerates with each generation. the chances of dying are about the same for these sparr

Paladinen [302]

Answer:

Exponential growth and a type II survivorship curve

Explanation:

Firstly we need to understand what exponential growth is, it is the type of growth in which population of any specie increases at a tremendous rate, constantly. In this type of growth, the increase is an exponential function of time for example, 2 reproduce to form form, four to sixteen and so on.

Population survivorship curves are simply the graphs representing increase in population with respect to time. There are three types of population survivor ship curve, Type I, Type II and Type III.

In Type II survivorship curve, there is a constant dying rate of individuals of population with respect to time.

Now lets come back towards question, where two characteristics of the population are mentioned,

Exponential growth of a population of sparrows with each generation.
Constant dying rate

This clarifies that Exponential growth and a type II survivorship curve is the best option representing the said scenario.

Hope it help!

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3 years ago

Dorothy Peterson was diagnosed with breast cancer. She and her doctor agreed upon treating this surgically with a/an:_______. Th

liq [111]

Answer:

It is called Lumpectomy also known as partial Mastectomy.

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3 years ago

In both high- and low-income countries, ____ is needed to reduce the spread of HIV and tuberculosis.A. rapid notification of inc

Andre45 [30]

Answer:

The correct answer is C. continued education

Explanation:

Education is important for both low and high-income countries for the prevention of disease in their people like HIV, tuberculosis. School education is very much important which provide information about the infectious and non-infectious disease to the children.

Educating children about the prevention of these diseases is important because school children are at the greatest risk of getting STDs. Education is one of the most cost-effective ways to prevent HIV, tuberculosis and other diseases. Therefore the correct answer is C. continued education.

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3 years ago